RU2012129346A - HIGH-STRENGTH NON-TEXTURED ELECTRICAL STEEL WITH HIGH MAGNETIC INDUCTION AND METHOD OF PRODUCING IT - Google Patents

HIGH-STRENGTH NON-TEXTURED ELECTRICAL STEEL WITH HIGH MAGNETIC INDUCTION AND METHOD OF PRODUCING IT Download PDF

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RU2012129346A
RU2012129346A RU2012129346/02A RU2012129346A RU2012129346A RU 2012129346 A RU2012129346 A RU 2012129346A RU 2012129346/02 A RU2012129346/02 A RU 2012129346/02A RU 2012129346 A RU2012129346 A RU 2012129346A RU 2012129346 A RU2012129346 A RU 2012129346A
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mass
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steel according
steel
temperature
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Чжаньюань ХУ
Бо ВАН
Шишу СЕ
Айхуа МА
Лиан ЦЗОУ
Цзытао ВАН
Юйхуа ЧЖУ
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Баошан Айрон Энд Стил Ко., Лтд.
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1261—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest following hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1272—Final recrystallisation annealing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

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  • Chemical & Material Sciences (AREA)
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  • Metallurgy (AREA)
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  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

1. Высокопрочная нетекстурированная электротехническая сталь с высокой магнитной индукцией, химический состав которой включает, масс/%:С: ≤0,0040Si: 2,50~4,00Al: 0,20~0,80Cr: 1,0~8,0Ni: 0,5~5,0Mn: ≤0,50P: ≤0,30S: ≤0,0020N: ≤0,0030Ti: ≤0,0030Nb: ≤0,010V: ≤0,010C+S+N+Ti: ≤0,010Fe и неустранимые примеси - остальное2. Сталь по п.1, отличающаяся тем, что она содержит медь, которая составляет ≤3 масс/%.3. Сталь по п.1 или 2, отличающаяся тем, что она содержит сурьму и/или олово с общим содержанием не более 0,5 масс/%.4. Сталь по п.1, отличающаяся тем, что содержание углерода составляет ≤0.002 или ≤0.0015 масс/%.5. Сталь по п.1, отличающаяся тем, что она содержит кремний в количестве от 2,8 до 3,3 масс/%.6. Сталь по п.1, отличающаяся тем, что она содержит алюминий в количестве от 0,4 до 0,6 масс/%.7. Сталь по п.1, отличающаяся тем, что она содержит хром в количестве от 2,5 до 6 масс/%.8. Сталь по п.1, отличающаяся тем, что она содержит никель в количестве от 1,0 до 3,5 масс/%.9. Сталь по п.1, отличающаяся тем, что она содержит фосфор в количестве не более 0,1 масс/% и серу в количестве не более 0,0015 масс/%.10. Сталь по п.1, отличающаяся тем, что она содержит азот в количестве не более 0,002 масс/%.11. Сталь по п.1, отличающаяся тем, что она содержит титан в количестве не более 0,0015 масс/%.12. Способ производства высокопрочной нетекстурированной электротехнической стали с высокой магнитной индукцией, включающий следующие шаги:1) выплавка и заливка:содержание элементов в химических составах нетекстурированной электротехнической стали таково, масс/%: C≤0,0040, Si от 2,50 до 4,00, А1 от 0,20 до 0,80, Cr от 1,0 до 8,0, Ni от 0,5 до 5,0, Mn≤0,50, Р≤0,30, S≤0,0020, N≤0,0030, Ti≤0,0030, Nb≤0,010, V≤0,010, C+S+N+Ti ≤0,010, Fe и неустранимые примеси - остальное, при этом сначала выполняют выплавку, циркуляци1. High-strength non-oriented electrical steel with high magnetic induction, whose chemical composition includes, mass/%: C: ≤0.0040Si: 2.50~4.00Al: 0.20~0.80Cr: 1.0~8.0Ni : 0.5~5.0Mn: ≤0.50P: ≤0.30S: ≤0.0020N: ≤0.0030Ti: ≤0.0030Nb: ≤0.010V: ≤0.010C+S+N+Ti: ≤0.010 Fe and irremovable impurities - the rest2. Steel according to claim 1, characterized in that it contains copper, which is ≤3 mass/%.3. Steel according to claim 1 or 2, characterized in that it contains antimony and/or tin with a total content of not more than 0.5 wt/%. Steel according to claim 1, characterized in that the carbon content is ≤0.002 or ≤0.0015 mass/%. Steel according to claim 1, characterized in that it contains silicon in an amount of from 2.8 to 3.3 wt/%. Steel according to claim 1, characterized in that it contains aluminum in an amount of from 0.4 to 0.6 wt/%. Steel according to claim 1, characterized in that it contains chromium in an amount of from 2.5 to 6 wt/%. Steel according to claim 1, characterized in that it contains nickel in an amount of from 1.0 to 3.5 wt/%. Steel according to claim 1, characterized in that it contains phosphorus in an amount of not more than 0.1 wt/% and sulfur in an amount of not more than 0.0015 wt/%. Steel according to claim 1, characterized in that it contains nitrogen in an amount of not more than 0.002 mass/%. Steel according to claim 1, characterized in that it contains titanium in an amount of not more than 0.0015 wt/%. A method for the production of high-strength non-oriented electrical steel with high magnetic induction, including the following steps: 1) smelting and pouring: the content of elements in the chemical compositions of non-oriented electrical steel is, wt/%: C≤0.0040, Si from 2.50 to 4.00 , A1 0.20 to 0.80, Cr 1.0 to 8.0, Ni 0.5 to 5.0, Mn≤0.50, P≤0.30, S≤0.0020, N ≤0.0030, Ti≤0.0030, Nb≤0.010, V≤0.010, C+S+N+Ti ≤0.010, Fe and unremovable impurities are the rest, while smelting is performed first, circulation

Claims (14)

1. Высокопрочная нетекстурированная электротехническая сталь с высокой магнитной индукцией, химический состав которой включает, масс/%:1. High-strength non-textured electrical steel with high magnetic induction, the chemical composition of which includes, mass /%: С: ≤0,0040C: ≤0.0040 Si: 2,50~4,00Si: 2.50 ~ 4.00 Al: 0,20~0,80Al: 0.20 ~ 0.80 Cr: 1,0~8,0Cr: 1.0 ~ 8.0 Ni: 0,5~5,0Ni: 0.5 ~ 5.0 Mn: ≤0,50Mn: ≤0.50 P: ≤0,30P: ≤0.30 S: ≤0,0020S: ≤0.0020 N: ≤0,0030N: ≤0.0030 Ti: ≤0,0030Ti: ≤0.0030 Nb: ≤0,010Nb: ≤0.010 V: ≤0,010V: ≤0.010 C+S+N+Ti: ≤0,010C + S + N + Ti: ≤0.010 Fe и неустранимые примеси - остальноеFe and fatal impurities - the rest 2. Сталь по п.1, отличающаяся тем, что она содержит медь, которая составляет ≤3 масс/%.2. Steel according to claim 1, characterized in that it contains copper, which is ≤3 mass /%. 3. Сталь по п.1 или 2, отличающаяся тем, что она содержит сурьму и/или олово с общим содержанием не более 0,5 масс/%.3. Steel according to claim 1 or 2, characterized in that it contains antimony and / or tin with a total content of not more than 0.5 mass /%. 4. Сталь по п.1, отличающаяся тем, что содержание углерода составляет ≤0.002 или ≤0.0015 масс/%.4. Steel according to claim 1, characterized in that the carbon content is ≤0.002 or ≤0.0015 mass /%. 5. Сталь по п.1, отличающаяся тем, что она содержит кремний в количестве от 2,8 до 3,3 масс/%.5. Steel according to claim 1, characterized in that it contains silicon in an amount of from 2.8 to 3.3 mass /%. 6. Сталь по п.1, отличающаяся тем, что она содержит алюминий в количестве от 0,4 до 0,6 масс/%.6. Steel according to claim 1, characterized in that it contains aluminum in an amount of from 0.4 to 0.6 mass /%. 7. Сталь по п.1, отличающаяся тем, что она содержит хром в количестве от 2,5 до 6 масс/%.7. Steel according to claim 1, characterized in that it contains chromium in an amount of from 2.5 to 6 mass /%. 8. Сталь по п.1, отличающаяся тем, что она содержит никель в количестве от 1,0 до 3,5 масс/%.8. Steel according to claim 1, characterized in that it contains Nickel in an amount of from 1.0 to 3.5 mass /%. 9. Сталь по п.1, отличающаяся тем, что она содержит фосфор в количестве не более 0,1 масс/% и серу в количестве не более 0,0015 масс/%.9. Steel according to claim 1, characterized in that it contains phosphorus in an amount of not more than 0.1 mass /% and sulfur in an amount of not more than 0.0015 mass /%. 10. Сталь по п.1, отличающаяся тем, что она содержит азот в количестве не более 0,002 масс/%.10. Steel according to claim 1, characterized in that it contains nitrogen in an amount of not more than 0.002 mass /%. 11. Сталь по п.1, отличающаяся тем, что она содержит титан в количестве не более 0,0015 масс/%.11. Steel according to claim 1, characterized in that it contains titanium in an amount of not more than 0.0015 mass /%. 12. Способ производства высокопрочной нетекстурированной электротехнической стали с высокой магнитной индукцией, включающий следующие шаги:12. A method of manufacturing a high strength non-textured electrical steel with high magnetic induction, comprising the following steps: 1) выплавка и заливка:1) smelting and pouring: содержание элементов в химических составах нетекстурированной электротехнической стали таково, масс/%: C≤0,0040, Si от 2,50 до 4,00, А1 от 0,20 до 0,80, Cr от 1,0 до 8,0, Ni от 0,5 до 5,0, Mn≤0,50, Р≤0,30, S≤0,0020, N≤0,0030, Ti≤0,0030, Nb≤0,010, V≤0,010, C+S+N+Ti ≤0,010, Fe и неустранимые примеси - остальное, при этом сначала выполняют выплавку, циркуляционное вакуумирование, а затем отливают из металла сляб, в соответствии с указанными выше химическими составами;the content of elements in the chemical compositions of non-textured electrical steel is as follows, mass /%: C≤0.0040, Si from 2.50 to 4.00, A1 from 0.20 to 0.80, Cr from 1.0 to 8.0, Ni from 0.5 to 5.0, Mn≤0.50, P≤0.30, S≤0.0020, N≤0.0030, Ti≤0.0030, Nb≤0.010, V≤0.010, C + S + N + Ti ≤ 0.010, Fe and unrecoverable impurities - the rest, while first they perform smelting, circulating evacuation, and then a slab is cast from the metal, in accordance with the above chemical compositions; 2) горячая прокатка:2) hot rolling: температура нагрева сляба составляет от 1050°С до 1200°С, время выдержки не менее 30 мин, начальная температура прокатки в процессе выглаживания регулируется от 940°С до 1000°С, итоговая температура прокатки составляет не менее 850°С, окончательный коэффициент нажима стенда регулируется в пределах от 10 до 15%, температура сматывания в рулон регулируется от 500 до 700°С, толщина прокатной полосы составляет от 2,0 до 2,6 мм;the slab heating temperature is from 1050 ° C to 1200 ° C, the holding time is at least 30 minutes, the initial rolling temperature in the process of ironing is regulated from 940 ° C to 1000 ° C, the final rolling temperature is at least 850 ° C, the final stand pressing coefficient adjustable in the range from 10 to 15%, the temperature of coiling is adjustable from 500 to 700 ° C, the thickness of the rolling strip is from 2.0 to 2.6 mm; 3) нормализация горячекатаной полосы:3) normalization of the hot rolled strip: температура нормализации составляет от 850 до 950°С, время выдержки от 0,5 до 3 мин, затем полосу медленно охлаждают до температуры от 650 до 750°С со скоростью охлаждения от 5 до 15°С/сек, после чего дополнительно охлаждают до температуры не выше 100°С с большой скоростью охлаждения от 20 до 70°С/сек;the normalization temperature is from 850 to 950 ° C, the holding time is from 0.5 to 3 minutes, then the strip is slowly cooled to a temperature of 650 to 750 ° C with a cooling rate of 5 to 15 ° C / s, after which it is further cooled to a temperature not higher than 100 ° С with a high cooling rate from 20 to 70 ° С / sec; 4) травление кислотой и холодная прокатка:4) acid etching and cold rolling: выполняют холодную прокатку при помощи однократного процесса холодной прокатки, суммарный коэффициент нажима не менее 70%;perform cold rolling using a single cold rolling process, the total pressure coefficient of not less than 70%; 5) отжиг в печи непрерывного действия:5) annealing in a continuous furnace: выполняют процедуру отжига в печи непрерывного действия, температура отжига составляет от 800 до 1000°С, выдерживают в течение 5-60 сек, затем медленно охлаждают до температуры от 650 до 750°С со скоростью охлаждения от 3 до 10°С/сек, после чего дополнительно охлаждают до температуры не выше 100°С с большой скоростью охлаждения от 20 до 70°С/сек.perform the annealing procedure in a continuous furnace, the annealing temperature is from 800 to 1000 ° C, maintained for 5-60 seconds, then slowly cooled to a temperature of 650 to 750 ° C with a cooling rate of 3 to 10 ° C / s, after which is further cooled to a temperature not exceeding 100 ° C with a high cooling rate from 20 to 70 ° C / s. 13. Способ по п.12, отличающийся тем, что сталь дополнительно содержит медь в количестве ≤3 масс/%.13. The method according to p. 12, characterized in that the steel further comprises copper in an amount of ≤3 mass /%. 14. Способ по п.12 или 13, отличающийся тем, что сталь дополнительно содержит сурьму и/или олово с общим содержанием не более 0,5 масс/%. 14. The method according to p. 12 or 13, characterized in that the steel further comprises antimony and / or tin with a total content of not more than 0.5 mass /%.
RU2012129346/02A 2010-10-25 2011-04-27 HIGH-STRENGTH NON-TEXTURED ELECTRICAL STEEL WITH HIGH MAGNETIC INDUCTION AND METHOD OF PRODUCING IT RU2012129346A (en)

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CN201010518005.5 2010-10-25
CN2010105180055A CN102453838A (en) 2010-10-25 2010-10-25 High-strength non-oriented electrical steel with high magnetic induction and manufacturing method thereof
PCT/CN2011/073368 WO2012055223A1 (en) 2010-10-25 2011-04-27 High strength non-oriented electric steel having higher magnetic flux density and manufacture method thereof

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